recreational use remains illegal under federal law. the question now, will the large crowds this weekend stall the movement to legalize marijuana. >> they want to pay the price, for those experiments with regard to having folks coming in from out of state? are they willing to regulate those folks the same way they regulate the citizens or in this case not to regulate them? >> reporter: something other states and marijuana supporters will be watching closely. akiko fujita, abc news, los angeles. >>> so just a few more details about what happened. apparently, 4:20 p.m., counter culture, on the 20th of april, sa time.andsxhe at that's what they didat 4:20, th largest cloud of marijuana smoke cotively produced. 40 minutes later, 5:00, shots rang out. >> i hope they get the guy. i really do. i -- who knows what will happen? i have a hard time believing he is one of the people, enjoying. you know -- i get the feeling he is like an anti-pot guy. as opposed to some guy who got rowdy. who knows. we'll see. hopefully get the guy. >> mellowed out